Generation of current sheets and giant quasistatic magnetic fields at the ionization of vacuum in extremely strong light fields
Journal article, 2015
The self-consistent dynamics of an electron–positron plasma, which is formed during the generation of quantum-electrodynamic cascades, in a superstrong field of counterpropagating linearly polarized waves is examined. It is shown that the formation of thin (on a wavelength scale) current sheets which generate quasistatic magnetic fields comparable to the corresponding fields of incident waves plays an important role in the dynamics of a cascade for fields above a certain threshold. The fraction of the laser energy transformed into the energy of quasistatic magnetic fields can exceed 20%.
Author
A. A. Muraviev
Institute of Applied Physics, Russian Academy of Sciences
Lobachevsky State University of Nizhni Novgorod
S. Bastrakov
Lobachevsky State University of Nizhni Novgorod
A. V. Bashinov
Institute of Applied Physics, Russian Academy of Sciences
Lobachevsky State University of Nizhni Novgorod
Arkady Gonoskov
Chalmers, Applied Physics, Condensed Matter Theory
E. Efimenko
Lobachevsky State University of Nizhni Novgorod
Institute of Applied Physics, Russian Academy of Sciences
Ulf Jordan
Lobachevsky State University of Nizhni Novgorod
Institute of Applied Physics, Russian Academy of Sciences
I. Meyerov
Lobachevsky State University of Nizhni Novgorod
A. M. Sergeev
Lobachevsky State University of Nizhni Novgorod
Institute of Applied Physics, Russian Academy of Sciences
JETP Letters
0021-3640 (ISSN) 1090-6487 (eISSN)
Vol. 102 3 148-153Subject Categories (SSIF 2011)
Fusion, Plasma and Space Physics
DOI
10.1134/S0021364015150060